Shooter Aim An airman role-plays as a shooter during an active shooter exercise inside David Grant Medical Center at Travis Air Force Base, Calif., Jan. 26, 2017. Air Force photo by Louis Briscese SHARE IMAGE: Download Image: Full Size (1.96 MB) Tags: training, AIR FORCE, Airmen Photo By: Louis Briscese VIRIN: 170126-F-LI975-0012A.JPG Photo Gallery